Automatic oil-feed device



W. H. WIX.

AUTOMATIC 0H. FEED DEVICE.

APPLICATION FILED IULYM, 1920. RENEWED JAN. 21.1922. 1,418,046.

Patented May 30, 1922.

/4 2 SHEETS-SHEET I.

3 Jim/WW;

W. H. WIX.

AUTOMATIC OIL FEED DEVICE.

APPLICATION man IULYH. 1926. RENEWED JAN. 21.1922.

Patented May 30; 1922.

2 SHEETS-SHEET 2' UNITED STATES WILLIAM H. "WIX, OF BALTIMORE, MARYLAND.

AUTOMATIC OIL-FEED DEVICE.

Application filed July 14, 1920, Serial No. 396,214.

I/ '0 all 207mm it may con cern Be it known that 1, WILLIAM H. VVIX, a citizen of the United States. residing at Baltimore city, State of Maryland, have invented certain new and useful Improvements in Automatic ()il-Feed Devices, of which the following is a specification.

This invention relates to lubricating appliances for die-stocks to feed oil to the cutting ends of the chasers.

The invention has for its object to provide a novel and improved device of the kind stated which feeds oil in small measured quantities. and which is entirely automatic in operation, the feed being occasioned by the rotary movement of the die-stock when in use.

The object stated is attained by means of." a combination and arrangement of parts to be hereinafter described and claimed. and in order that the same may be better understood. reference is had to the accompanying drawings forming a part of this specification.

In the drawings- Figure 1 is an elevation of the device, partly in section, and in position on a diestock; Figure 2 is a section on the line 2-2 of Figure 5; Figure 3 is a section on the line 3-3 of Figure 2; Figure 4 is a view similar to Figure'2 showing the device in inverted position; Figure 5 is a horizontal section on the line,55 of Figure 2, and Figure 6 is a cross-section on the line 66 of Figure 4.

Referring specifically to the drawings. 10 denotes a die-stock having end extensions 11. as usual for handles whereby the stock is rotated. The stock has a work-receiving opeciliing 12 into which the chasers 13 exten On the body of the stock 10 is mounted a device for automatically supplying oil to the cutting ends of the chasers 13. It will be understood however that the device may also be mounted un any other portion of the stock in such a manner that the oil is fed to the proper place. The device is a fluid-tight receptacle 14% containing a supply of oil and having an outlet into the opening 12 so that the oil is discharged on the work to lubricate the cutting ends of the chasers 13. The receptacle has a filler nipple 15 provided with a suitable closure. Ears 16 on the receptacle 14: provide convenient means for Specification of Letters Patent.

Patented May 30, 1922.

Renewed January 21, 1922. Serial No. 531,000.

attaching the same to the stock by screws or other suitable fasteners 17.

The receptacle 14 is rectangular, and adjacent to one of its ends it contains two laterally spaced oil-collecting chambers 18, with a bottom 19 common to both, but of less width than that of the chambers where it extends t-herebetween. That portion of the bottom wall which is between the chambers has upstanding side flanges 20 where-- by a trough is produced which connects the chambers. The chambers have inner and outer side walls 21 and 22. and end walls 23. the side walls extending transversely between the front and rear walls of the receptacle l4. Tt will be noted that the walls 21 are spaced from the aforementioned end of this receptacle 14 (this being the top when the stock 10 is positioned as shown in F igure 1), and that the walls ,22 extend down from said receptacle end to terminate short of the bottom 1.9 of the chambers. The space between the walls 22 defines a second chamber 24 which opens at its ends into the receptacle 14 through the space between the front and rear walls thereof and the sides 20 of the trough connecting the chambers 18. The chambers 18 are in communication with the chamber 24: through the spaces between the bottom of the walls 22 and the bottom 19 ot the chambers 18. A direct communication between the interior oil the receptacle 14 and the chambers 18 is had by the way of the open tops oi the latter.

From the trough which extends between the chambers 18 extends a short cylinder 25 which opens into said trough and slidably seats a plunger 26 having a head 27 which eXtends into the chamber 24 and is of sufficient weight to force the plunger down in the cylinder when the parts are in the position shown in Figure 2.

From the bottom of the cylinder 25 extends a tube 28 which passes through that end of the receptacle which is at the bottom in Figure 2. This tube is the discharge tube which carries the oil into the opening 12 onto the work therein, its outer end being fitted with a suitable nozzle 28*.

In the tube 28 slidably seats a tubular stem 29 extending from the plunger 26. This stem has side ports 30, 31 and 82 at different levels.

On the tube 28 are two diametrically opposite by-pass chambers 33, and near the ward stroke.

The receptacle 1.4 is provided with an automatic air-vent valve 38.

The operation of the device may be summarized as follows As the receptacle 14 (containing a supply of oil) is attached to the diestocl-: 10, it swings around in a circular path when the die-stock is in operation. This-motion of the receptacle inverts the same once every rev olution of the die-stock. Figure 41- ot the drawings shows the device in inverted position. It will therefore be evident that the plunger '26 is made to slide down into and out of the cylinder 25 as the device revolves with the die-stock. When the device is at the top, as shown in Figure 2, the plunger is down in the cylinder and when the device approaches the inverted position the plunger slides out of the cylinder as shown in Figure 4. This movement of? the plungeris positive,,due to the weighted head 27. The motion of the receptacle 14; causes the oil to splash around therein and thus to flow into the trough from which the cylinder'25 extends, the oil passing over the top of the walls 21, and under thewalls 22, as well as over the flanges 20. As the device passes from the position shown in Figure 4: to the position shown in Figure 2, the cylinder 25 now being open, oil gathers in the same, and when the device approaches the position shown in Figure 2, the plunger 26 slides down into'the cylinder and forces the oil out of the same into the stem 29 through the ports 3O which open into the cylinder when the plunger is out of the same. The oil in the stem 29' however cannot escape directly to the nozzle 28 as the stem is closed up between the ports 8]. and 32 as shown at 39, although it opens at its lower end. into the tube 28 During theinward stroke" of the plunger to the position shownin Figure 2, theports :31 pass the ports 34:, whereupon 01] 1S admittedto the by-pas'ses 33 through these ports. During this stroke of the plun- I v the nozz'l'e28 fonto the work.

ger the ports 32 also pass pOrts 35' at the bottom ofth'eby-passes 33, and the oil flows from the latter through said ports back into thelower end of the stem 29 from the open lower end of which it passes into the lower end of the tube 28 and is discharged through I J After the stock 10 has been'turned a number of times the oil is discharged in drops from the nozzle 28, one drop at every revolution of the stock around the work, the feed of oil beingentirely autonmtic. The specific construction and, arrangement oi the oil-collecting chambers l8 and 24., and the trough therebetween assures a flow of oil to the cylinder 25.

I claim;

1. The combination with" a die-stock operating with a rotary motion; of an oil-re ceptacle carried thereby, an oil -collecting chamber in the receptacle into which the oil is splashed by the motion of the die-stock, an outlet cylinder leading from the chamber, a feed tube leading from the cylinder, a reciprocatoryplunger movable into and out of the cylinder by the motion of the die-stock, a hollow stem extending from the plunger and slidably' seating in the tube, the outer end of said stem opening into the tube, and a by-pass having entrance and exit ports, the aforesaid tube having a port which opens into the cylinder when the plunger is out of the same and other ports for establishing communication between. the interior of the stem and'the entrance and exit ports respectively of the by-pass.

2. The combination with a die-stock operating with a rotary motion; of an oil-receptacle carried thereby, an oil-collecting chamber in the receptacle into which the oil is splashed by the motion of the die-stock, an outlet cylinder leading from the chamber, a feed tube leading from the cylinder, a reciprocatory plunger movable into and out of the cylinder by the motion of the diestock, a hollow stem extending from the plunger and slidably seating in the tube, and outer of said stem opening into the tube, and abypasshaving entrance and exit ports, lheaforesaid tube having a port which opens into the cylinder when the plunger is out of the. same and other ports for establishing communication between: the interior of the stem and the entrance and exit ports respectively ot the by-pass, said stem being closed between. the last mentioned ports thereof.

3. The combination witha die-stock op erating with a rotary motion; of an oil receptacle carried thereby, a pair of. laterally spaced oil-collecting chambers mounted in the receptacle into which the oil is splashed by the motion of the die-stock, said chambers being located adjacent to one end of the receptacle and having outer side walls spaced therefrom, andinner walls extending from said receptacle end wall and terminating short of" the bottom of the chambers, a trough extending between the chambers and open to the interior of the receptacle, and means for discharging oil from the trough.

The combination with a die-stock operating witha rotaryv motion; ofan oil receptacle carried thereby, -'a pair of laterally spaced oil-colleeting chambers mounted in the receptacle into which the oil is splashed by the motion of the (lie-stock, said chambers being located adjacent to one end of the receptacle and having outer side wal ls spaced therefrom, and inner walls extending from said receptacle end wall and tern'iinating short of the bottom of the chambers, a trough extending between the chambers and open to the interior of the receptacle, an outlet cylinder leading from the trough, a feed tube leading "from the cylinder, 21 i eeipr0catory plunger movable into and out of the cylintier by the motion of the die-stock, a hollow stern extending from the plunger and slidably seating in the tube, the outer end of said stem opening into the tube and a by-pass having entrance and exit ports, the aforesaid tube having a port which opens into the cylinder when the plunger is out of the same, and other ports for establishing" communication between the interior of the stem and the entrance and exit ports respectively of the by-pass.

In testimony whereof I afiix my signature.

WILLIAM H. WIX. 

